Section: USMLE

2) A genotypic male (XY) is born with feminized external genitalia. The testes are retained within the abdominal cavity, and the internal reproductive tracts exhibit the normal male phenotype. Which of the following could account for this abnormal development?

1. Complete androgen resistance
2. 5α-reductase deficiency
3. 17α-hydroxylase deficiency
4. Sertoli-only syndrome
5. Testicular dysgenesis